package listening;

import javax.servlet.ServletContextAttributeEvent;
import javax.servlet.ServletContextAttributeListener;

/**
 * Created by kevin on 2020/4/14.
 */
public class BListener implements ServletContextAttributeListener{
    @Override
    public void attributeAdded(ServletContextAttributeEvent event) {

    }

    @Override
    public void attributeRemoved(ServletContextAttributeEvent event) {

    }

    @Override
    public void attributeReplaced(ServletContextAttributeEvent event) {

    }
}
